Kontron KTUS15-mITX - 1.1 Basic - Manual (Page 46)

KTD-00774-G KTUS15/mITX Page 46 of 84
4.19 Feature Connector (FEATURE)
Note Pull
U/D
Ioh/
Iol Type
Signal PIN# Signal Type Ioh/
Iol
Pull
U/D Note
2 2M/ - I INTRUDER# 1 2 GND PWR - -
NC 3 4 PSUP_OFF OC -
100K I POWER_UP 5 6 SB5V PWR - -
- - PWR SB3V3 7 8 EXT_BAT PWR - -
- - PWR +5V 9 10 GND PWR - -
1 4K7/ /12mA IOT GPIO0 11 12 GPIO1 IOT /12mA 4K7/ 1
1 4K7/ /12mA IOT GPIO2 13 14 GPIO3 IOT /12mA 4K7/ 1
1 4K7/ /12mA IOT GPIO4 15 16 GPIO5 IOT /12mA 4K7/ 1
1 4K7/ /12mA IOT GPIO6 17 18 GPIO7 IOT /12mA 4K7/ 1
- - PWR GND 19 20 FAN3OUT O 4K7 3
FAN3IN 21 22 +12V PWR - -
TEMP3IN 23 24 VREF
- - PWR GND 25 26 IRRX
IRTX 27 28 GND PWR - -
1 4K7/ SMBC 29 30 SMBD 4K7/ 1
Note 1: Pull-up to +3V3Dual (+3V3 or SB3V3). Note 2: Pull-up to onboard Battery. Note 3: Pull-up to +3V3.
Signal Description
INTRUDER# INTRUDER, may be used to detect if the system case has been opened. This signal’s
status is readable, so it may be used like a GPI when the Intruder switch is not required.
NC No Connection
PSUP_OFF
Power SUpply OFF open collector output signal can be used as PSON input to an ATX
PSU to keep it turned on until this signal gets inactive (Windows Shutdown etc.)
POWER_UP
POWER UP, input signal has pull-up resistor to Vin. By adding resistor to ground
(threshold voltage ~1.5V) the minimum Vin can be programmed. If the input is lower than
threshold voltage the board does not turn on. See also note in chapter “Power Connector
(PWR)”.
SB5V StandBy +5V supply.
SB3V3 Max. load is 0.75A (1.5A < 1 sec.)
EXT_BAT
(EXTernal BATtery) option for connecting + terminal of an external primary cell battery
(2.5 - 4.0 V) ( – terminal connected to GND etc. pin 10). The external battery is protected
against charging and can be used with or without the onboard battery installed.
+5V Max. load is 0.75A (1.5A < 1 sec.)
GPIO0..7
General Purpose Inputs / Output. These Signals may be controlled or monitored through
the use of the KT-API-V2 (Application Programming Interface).
FAN3OUT
FAN 3 speed control OUTput. This 3.3V PWM signal can be used as Fan control voltage
(0–3.3V DC in 128 steps) via a Fan Driver Circuit (not included) to program Fan voltage.
For more info, see W83627 datasheet. Default PMW output is 127 (100% = 3.3V).
FAN3IN FAN3 Input. 0V to +3V3 amplitude Fan 3 tachometer input.
+12V Max. load is 0.75A (1.5A < 1 sec.)
TEMP3IN
Temperature sensor 3 input. (Recommended: Transistor 2N3904, having emitter
connected to GND (pin 25), collector and basis shorted and connected to pin 23. Further
a resistor 30K/1% shall be connected between pin 23 - 24. (Precision +/- 3ºC).
VREF Voltage REFerence, reference voltage to be used with TEMP3IN input.
IRRX IR Receive input (IrDA 1.0, SIR up to 1.152K bps)
IRTX IR Transmit output (IrDA 1.0, SIR up to 1.152K bps)
SMBC SMBus Clock signal
SMBD SMBus Data signal